The study monitored the viewing habits of 2,000 children in the UK aged between five and 16, with close to 100 per cent visiting YouTube regularly.

The findings, uncovered by research group ChildWise, suggest children are now seeking #8220;edgier#8221; content.

For confidential support on mental health call the Samaritans on 116 123, email jo@samaritans.org or attend a local Samaritans branch.

#8220;However, children#8217;s favourite new vloggers are more edgy, with a style more akin to negative playground behaviour where the most popular vloggers are the ones that do the worst possible things they can get away with on YouTube.#8221;